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Among the electromagnetic (EM) waves, which has the lowest frequency?

A. Infrared radiation
B. Ultraviolet light
C. Gamma rays
D. Radio waves
10. Which of the following is not true about the nature of light?

A. Light is an electromagnetic wave.
B. Light is a mixture of ROYGBIV colors of light.
C. Light is a form of energy that travels in space.
D. Light has a constant speed of 3 x 108 m/s in any medium.

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Answer:

Among the electromagnetic (EM) waves, which has the lowest frequency?

  • [tex]D. Radio Waves[/tex], Radio waves on the other hand have the lowest energies, longest wavelengths and lowest frequencies of any type of EM radiation.

10. Which of the following is not true about the nature of light?

  • [tex]D. Light has a constant speed of 3 x 108 m/s in any medium.[/tex], Light wave can only travel in vacuum or outer space at a speed of 3 x 10⁸ m/s and it may travel in different speed in another medium.

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